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A105885 as a simple table

na(n)
12
23
35
423
537
641
743
873
979
1089
1197
12107
13109
14127
15131
16137
17139
18149
19179
20191
21197
22199
23241
24251
25263
26281
27283
28293
29317
30347
31349
32353
33367
34397
35401
36439
37449
38457
39467
40491
41503
42509
43523
44541
45557
46563
47571
48577
49593
50599
51607
52613
53617
54647
55659
56719
57727

[2,3,5,23,37,41,43,73,79,89,97,107,109,127,131,
 137,139,149,179,191,197,199,241,251,263,281,283,
 293,317,347,349,353,367,397,401,439,449,457,467,
 491,503,509,523,541,557,563,571,577,593,599,607,
 613,617,647,659,719,727]